[anarcticpuffin]

I'd like to know how the 26ns wire-to-wire latency was measured. As far as I know, just handling the PHY layer on NIC takes at least ~300ns. Likely the authors are inferring latency by using 1/<throughput>, which is mistaken at these levels.

[deadgrey19]

Typical capture cards have a resolution of 6-7ns. 300ns PHY is an out of date value. These guys can do ~425ns wire to application (or 850ns round trip to software) http://exablaze.com/exanic-x4